True story and mostly unrelated to this question:
My wife and I were looking for a house a few years ago and we were at one that she kind of liked. It was okay to me, too. When we were done looking at it we were standing in the dining room with the realtor talking about things and I noticed that the chandelier in the dining room looked funny; like it was slanted. And it was on a chain, not a pole. So I’m looking at it more, standing on the far end of the room and tilting my head and my wife asked me what was wrong.
“The floor is slanted,” I said. My wife looked at the realtor.
“No, the place is level,” he insisted. I stood on the edge of the dining room and put a round pen on the floor and gave it a little tap to start it rolling. It picked up enough speed to bounced off of the far wall.
We skipped the house. And ran over a tarantula on the way out.